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Qwt User's Guide
6.1.5
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Renderer for exporting a plot to a document, a printer or anything else, that is supported by QPainter/QPaintDevice. More...
#include <qwt_plot_renderer.h>

Public Types | |
| enum | DiscardFlag { DiscardNone = 0x00, DiscardBackground = 0x01, DiscardTitle = 0x02, DiscardLegend = 0x04, DiscardCanvasBackground = 0x08, DiscardFooter = 0x10, DiscardCanvasFrame = 0x20 } |
| Disard flags. More... | |
| enum | LayoutFlag { DefaultLayout = 0x00, FrameWithScales = 0x01 } |
| Layout flags. More... | |
| typedef QFlags< DiscardFlag > | DiscardFlags |
| Disard flags. | |
| typedef QFlags< LayoutFlag > | LayoutFlags |
| Layout flags. | |
Public Member Functions | |
| QwtPlotRenderer (QObject *=NULL) | |
| virtual | ~QwtPlotRenderer () |
| Destructor. | |
| void | setDiscardFlag (DiscardFlag flag, bool on=true) |
| bool | testDiscardFlag (DiscardFlag flag) const |
| void | setDiscardFlags (DiscardFlags flags) |
| DiscardFlags | discardFlags () const |
| void | setLayoutFlag (LayoutFlag flag, bool on=true) |
| bool | testLayoutFlag (LayoutFlag flag) const |
| void | setLayoutFlags (LayoutFlags flags) |
| LayoutFlags | layoutFlags () const |
| void | renderDocument (QwtPlot *, const QString &fileName, const QSizeF &sizeMM, int resolution=85) |
| void | renderDocument (QwtPlot *, const QString &fileName, const QString &format, const QSizeF &sizeMM, int resolution=85) |
| void | renderTo (QwtPlot *, QPrinter &) const |
| Render the plot to a QPrinter. More... | |
| void | renderTo (QwtPlot *, QPaintDevice &) const |
Render the plot to a QPaintDevice. More... | |
| virtual void | render (QwtPlot *, QPainter *, const QRectF &plotRect) const |
| virtual void | renderTitle (const QwtPlot *, QPainter *, const QRectF &titleRect) const |
| virtual void | renderFooter (const QwtPlot *, QPainter *, const QRectF &footerRect) const |
| virtual void | renderScale (const QwtPlot *, QPainter *, int axisId, int startDist, int endDist, int baseDist, const QRectF &scaleRect) const |
| Paint a scale into a given rectangle. Paint the scale into a given rectangle. More... | |
| virtual void | renderCanvas (const QwtPlot *, QPainter *, const QRectF &canvasRect, const QwtScaleMap *maps) const |
| virtual void | renderLegend (const QwtPlot *, QPainter *, const QRectF &legendRect) const |
| bool | exportTo (QwtPlot *, const QString &documentName, const QSizeF &sizeMM=QSizeF(300, 200), int resolution=85) |
| Execute a file dialog and render the plot to the selected file. More... | |
Renderer for exporting a plot to a document, a printer or anything else, that is supported by QPainter/QPaintDevice.
Disard flags.
Layout flags.
| Enumerator | |
|---|---|
| DefaultLayout | Use the default layout as on screen. |
| FrameWithScales | Instead of the scales a box is painted around the plot canvas, where the scale ticks are aligned to. |
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explicit |
Constructor
| parent | Parent object |
| QwtPlotRenderer::DiscardFlags QwtPlotRenderer::discardFlags | ( | ) | const |
| bool QwtPlotRenderer::exportTo | ( | QwtPlot * | plot, |
| const QString & | documentName, | ||
| const QSizeF & | sizeMM = QSizeF( 300, 200 ), |
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| int | resolution = 85 |
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| ) |
Execute a file dialog and render the plot to the selected file.
| plot | Plot widget |
| documentName | Default document name |
| sizeMM | Size for the document in millimeters. |
| resolution | Resolution in dots per Inch (dpi) |
| QwtPlotRenderer::LayoutFlags QwtPlotRenderer::layoutFlags | ( | ) | const |
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virtual |
Paint the contents of a QwtPlot instance into a given rectangle.
| plot | Plot to be rendered |
| painter | Painter |
| plotRect | Bounding rectangle |
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virtual |
Render the canvas into a given rectangle.
| plot | Plot widget |
| painter | Painter |
| maps | Maps mapping between plot and paint device coordinates |
| canvasRect | Canvas rectangle |
| void QwtPlotRenderer::renderDocument | ( | QwtPlot * | plot, |
| const QString & | fileName, | ||
| const QSizeF & | sizeMM, | ||
| int | resolution = 85 |
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| ) |
Render a plot to a file
The format of the document will be auto-detected from the suffix of the file name.
| plot | Plot widget |
| fileName | Path of the file, where the document will be stored |
| sizeMM | Size for the document in millimeters. |
| resolution | Resolution in dots per Inch (dpi) |
| void QwtPlotRenderer::renderDocument | ( | QwtPlot * | plot, |
| const QString & | fileName, | ||
| const QString & | format, | ||
| const QSizeF & | sizeMM, | ||
| int | resolution = 85 |
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| ) |
Render a plot to a file
Supported formats are:
Scalable vector graphic formats like PDF or SVG are superior to raster graphics formats.
| plot | Plot widget |
| fileName | Path of the file, where the document will be stored |
| format | Format for the document |
| sizeMM | Size for the document in millimeters. |
| resolution | Resolution in dots per Inch (dpi) |
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virtual |
Render the footer into a given rectangle.
| plot | Plot widget |
| painter | Painter |
| footerRect | Bounding rectangle for the footer |
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virtual |
Render the legend into a given rectangle.
| plot | Plot widget |
| painter | Painter |
| legendRect | Bounding rectangle for the legend |
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virtual |
Paint a scale into a given rectangle. Paint the scale into a given rectangle.
| plot | Plot widget |
| painter | Painter |
| axisId | Axis |
| startDist | Start border distance |
| endDist | End border distance |
| baseDist | Base distance |
| scaleRect | Bounding rectangle for the scale |
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virtual |
Render the title into a given rectangle.
| plot | Plot widget |
| painter | Painter |
| titleRect | Bounding rectangle for the title |
| void QwtPlotRenderer::renderTo | ( | QwtPlot * | plot, |
| QPaintDevice & | paintDevice | ||
| ) | const |
Render the plot to a QPaintDevice.
This function renders the contents of a QwtPlot instance to QPaintDevice object. The target rectangle is derived from its device metrics.
| plot | Plot to be rendered |
| paintDevice | device to paint on, f.e a QImage |
| void QwtPlotRenderer::renderTo | ( | QwtPlot * | plot, |
| QPrinter & | printer | ||
| ) | const |
Render the plot to a QPrinter.
This function renders the contents of a QwtPlot instance to QPaintDevice object. The size is derived from the printer metrics.
| plot | Plot to be rendered |
| printer | Printer to paint on |
| void QwtPlotRenderer::setDiscardFlag | ( | DiscardFlag | flag, |
| bool | on = true |
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| ) |
Change a flag, indicating what to discard from rendering
| flag | Flag to change |
| on | On/Off |
| void QwtPlotRenderer::setDiscardFlags | ( | DiscardFlags | flags | ) |
Set the flags, indicating what to discard from rendering
| flags | Flags |
| void QwtPlotRenderer::setLayoutFlag | ( | LayoutFlag | flag, |
| bool | on = true |
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| ) |
Change a layout flag
| flag | Flag to change |
| on | On/Off |
| void QwtPlotRenderer::setLayoutFlags | ( | LayoutFlags | flags | ) |
Set the layout flags
| flags | Flags |
| bool QwtPlotRenderer::testDiscardFlag | ( | DiscardFlag | flag | ) | const |
| flag | Flag to be tested |
| bool QwtPlotRenderer::testLayoutFlag | ( | LayoutFlag | flag | ) | const |
| flag | Flag to be tested |